import java.util.Scanner;

class Solution {
    public  String s = "Hello";

    public String toLowerCase1(String s) {
        Scanner sc = new Scanner(System.in);
        String s1 = sc.nextLine();
        return s1.toLowerCase();

    }

    public static void main(String[] args) {
        Solution solution = new Solution();
        String s1 = solution.toLowerCase1(solution.s);
        System.out.println(s1);
    }
}


class SystemUtil{
    public static boolean isAdmin(String userId){
        return userId.toLowerCase()=="admin";
    }
    public static void main(String[] args){
//        System.out.println(isAdmin("Admin"));
        String s = "abc" + "def";
        String s2 = new String(s);
//        String s3 = new String();
//        System.out.println(s);
//        System.out.println(s2);

    }
}


public class Example{
    String str = new String("good");
    char[ ] ch = { 'a' , 'b' , 'c' };
    public static void main1(String args[]){
        Example ex = new Example();
        ex.change(ex.str,ex.ch);
        System.out.print(ex.str + " and ");
        System.out.print(ex.ch);
    }
    public void change(String str,char ch[ ]){
        str = "test ok";
        ch[0] = 'g';
    }
}

